Volcano Vaporizer Balloon Bags should be replaced after 50-100 uses to ensure a flavourful and efficient experience. The Volcano Balloon Replacement Bags measure 3 metres by 31 centimetres or just less than 10 feet by 1 foot. This makes it really convenient to choose the length of your replacement Bags. The Volcano Vaporizer Balloon Replacement Bags allow your favourite aromatherapy blends to remain fresh for up to 8 hours.